Maxtor XT-1085 100MB MFM Hard Drive For Parts Vintage 5.25 Full Height AS-IS

Maxtor XT-1085 100MB MFM Hard Drive For Parts Vintage 5.25 Full Height AS-IS

The Maxtor XT-1085 is a 100MB full-height 5.25-inch MFM hard drive from the mid-1980s. It uses the ST-506/ST-412 MFM interface standard that was common in IBM PC/XT and PC/AT systems of that era. This unit is being sold AS-IS for parts or repair — it powers on but produces a grating noise during spin-up and is not recognized by a test PC.

Specifications & What's Included

• Manufacturer: Maxtor
• Model: XT-1085
• Capacity: 100 MB
• Interface: MFM (ST-506/ST-412)
• Form Factor: 5.25" Full Height
• Power: 12V / 5V DC, 26.5 Watts
• Dimensions: 9" x 6" x 4"
• Country of Manufacture: Singapore
• PCBA: 10G5085 N1
• Black front face panel with green LED power indicator
• MFM data edge connector and 4-pin power connector on underside PCB
• Drive only — no cables or mounting hardware included

Applications

The XT-1085 was designed for IBM PC/XT and PC/AT compatible systems using an MFM hard disk controller card, common in business and professional workstations of the mid-1980s. MFM (Modified Frequency Modulation) was the dominant hard drive interface standard of that era before IDE/ATA and SCSI became prevalent in the late 1980s and early 1990s. Full-height 5.25-inch drives like this one were typically mounted in desktop tower cases or industrial enclosures of the period. Today, examples like this are sought by vintage computer restorers, collectors working on IBM PC/XT and AT systems, and hobbyists attempting data recovery or drive repair from that generation of hardware. The XT-1085 was one of Maxtor's higher-capacity offerings of its time and remains a recognizable piece of early personal computing history.